Background: Despite, the availability of standard treatment protocols for severe acute malnutrition in stabilization centers in Ethiopia, children under-five admitted were unsatisfactorily high mortality. Therefore little is known about the survival status and determinants of mortality for the study setting. Objective: to assess the survival status and determinants of mortality among severely malnourished children aged 0-59 months admitted to Jinka Hospital.Methods: The hospital-based retrospective cohort study was conducted from March 20-30, 2019. Simple random sampling was used to select 588 medical records. The proportional hazard assumption was checked by the global test. Bivariable and multivariable Cox regression hazard ratio was used to see the association between each independent variable and the outcome variable. The level of statistical significance was declared at a p-value less than 0.05.Result: during follow-up, 62 (10.54%) children had died (95% CI: 8.05, 13.03). The overall mean survival time was 38 days (CI: 6.3, 39.7).